Blazer Lift?

I just bought a '90 blazer which sits on stock suspension and wheels which I would like to lift. I trying to decide between 4" lift with 33"x12.50" or a 2.5" system with 33"x10.50" on the stock aluminum wheels. My local shop recomends dropping the transfercase to correct pinion angles with a 4" lift, is this necessary? How will that effect the shift linkage, and engine mounts? I'm thinking about a Skyjacker lift, I had 4" softride springs on my last truck,a 3/4 ton 72 with 35s and liked them alot. I want to maintain close to factory ride, and don't really want to throw anything on the truck out of whack. The goal is to accomodate 33" for increased ground clearance,(and improved stance) it won't be doing any heavy wheeling just enough to get me to my fav fishing holes. Does anybody have any tips or know of any advantages of going with a more mild lift (or disadvantages with the 4"), I'd appreciate any comments.

Useful Searches

>
About Us>
>
In May of 1999 CK5 started out as a tribute to America's favorite 4x4 utility truck. Since then it has grown to be
a leader among full size Chevrolet K5 Blazer and GMC Jimmy web sites across the Internet. CK5 has since expanded
to include the C/K series GM Truck and Suburban as well as past and present GM models.
>>
With its technical articles, factory specifications, photo gallery, classifieds, active message forum, product
reviews and original automotive content it's an unbeatable source.